Nonburst radiator



J. c. MAXWELL.

NONBURSI'. RADIATOR Filed Feb. 10 (1923 J, C, Maxwell Patented Sept. 23, 1924.

" ENT OFl E.

JOHN G. MAXWELL, OF MOODY, INDIANA.

NONBURST RADIATOR.

Application filed February 10, 1923. Serial No. 618,250.

,citizen of the United States, residing at Moody, in the county of Jasper and State of Indiana, has invented certain new and useful Improvements in Nonburst Radiators, of which the following is a specification.

Thisinvention relates to a non-burst radiator for use in automobiles, tractors, gas engines, flying machines or the like and has for its principal object to provide a radiator with means therefor for the purpose of preventing the bursting ofthe radiator in case of freezing.

Another important object of the invention is to provide a radiator of the above mentioned character, with means whereby the pressure caused by the freezing normally in cold weather will be released thereby preventing the bursting of the radiator.

Another important object of the invention is to provide a radiator of the above mentioned character, with means which will not only prevent the bursting of the radiator when freezing but will also aid in thawing out the radiator in case the same should freeze.

A still'further object of the invention is to provide an attachment for a radiator of the above mentioned character, which is simple in construction, inexpensive, strong, durable and further well adapted for the purpose for which it is designated.

Other objects and advantages of this invention will become apparent during the course of the following description.

In the accompanying drawings forming a part of this specification and in which like numerals designate like parts throughout the same Figure 1 is a front elevation of a radiator with parts broken away and showing my invention applied thereto.

Figure 2 is a sectional view taken on line 2--2 of Fig. 1 looking in the direction of the arrows, and

Figure 3 is a perspective View of the attachment.

In the drawings wherein for the purpose of illustration is shown the preferred em bodiment of my invention, the numeral 1 designates the top chamber, the numeral 2, the bottom chamber and connecting the two chambers are the vertical radiator tubes 3. This forms the radiator which is of the usual construction and it is' not thought necessary to go into detail as to the construction of the same as the same is well known in the art. Mounted in the vertical tubes 3 and spaced from the tube walls by the spiders 4 are the cores 5 which are formed of wood, wood fiber or other material. These spiders 4 maintain the cores 5 in spaced relation with regard to the inner walls of the radiator tubes 3 thus preventing the cores from entirely interfering with the proper circulation of the water through the radiator tubes.

These porous cores 5 extend from the extreme bottom of the chamber 2 and through the radiator tubes 3 and terminate in the extreme top of the top chamber 1. This is more clearly shown in Fig. l of the drawings. The purpose of this construction will hereinafter be more fully described. It is a well known fact that in cold weather the radiator which is formed of metal becomes cold and the water within the radiator and the tubes associated therewith have a tendency to freeze and thereby prevent the proper circulation of water through the engine which necessarily results in the difficult starting of an automobile. When the water freezes in the bottom chamber of the radiator in connection with the radiator embodying my invention, the pressure will cause the water to escape from the bottom chamber or base of the radiator where there is always found a large bulk of water and which is the last to freeze, to the top of the radiator where there is sufiicient room between the water line and the top of the radiator to allow for the expansion of the same. It will thus be seen that the water which is forced from the bottom chamber of the radiator through the radiator 52 will tindroom between the water line in the top chamber and the top of the cores 5 to prevent pressure suflicient to burst the radiator. Furthermore it is to be noted that with a radiator construction of the above mentioned character wherein the same is provided with a porous core which extends from the extreme top of the radiator to the extreme bottom thereof and is adapted to extend through the radiator tubes which connect the top chamber with the bottom chamber the water will not have a tendency to become frozen and furthermore the cores will require a lower temperature for the water to be frozen. By having the wooden cores extendinggentirely throughithe length of the radiator tubes, should therebe a tendency for the water in the radiator to become frozen due to predetermined conditions, there will be enough clearance about the cores to permit the water, that is to say, the warm water in the bottom of the radiator, to pass through the tubes and into the top chamber of the radiator. If however the wa-ter should become frozen in the radiatorithe cores willpermit the same tobe thawed out more'easily and speedily. It' is also possible that when freezing does occur, thecoresv being formed. ofwood will be to a certain extent compressible and will-thus giye'theiice achance to expand without exerting as much pressure as it otherwise would'fon the tubes and walls of the radiator,

'It ill thus be seen from the foregoing descriptionthat an attachment for a radiator has been provided wherein the same is especially adapted'for use in connection with coldweather and furthermore is of such a construction asflto en'able'the same to be easily, and 'quickly removed "for the purpose of replacing it when vit hasbecome worn and ,doesnot require the use of a number of tools, to place the same in position within the yerticalradiator tubes and furthermore the simplicity of the same renders it very V elficient and useful.

"From the foregoing. description of the construction of my improvedg apparatus, it will be seen that Ihave provided a simple, inexpensive, and efiicient means for carrying outs the objectssof the invention, and

while I have particularly described the eleradiator tubes therebetween, wooden cores in said tubes and spaced from the inner walls' thereof, said cores. extending from'the extreme bottom of said chamberto the extreme top of said top'chainber;

2. k radiator of the 'cla'ss describe'd comprising top and bottom chambers, vertic'al radiator tubes therebetweenywooden cores extending throughsaid tubes and into said top and bottom chambers respectively,,and means on said cores for holding the same in spaced relation with respect tosthe inner Walls of said tubes. Q

In testimony whereof I afiix my signature. V

JOHN o)MinXWELL. 

